如果 (n < 0)
{
n = 1
}
否则
{
n = 3 * n / 558 // EL0.取成员数 () // 558 取数组成员数 (EL0)
}
t2 = t * t
t3 = t2 * t
t4 = t3 * t
t5 = t4 * t
v = Enn (EL0, EL0, t, n)
v = v + Enn (EL1, EL0, t, n) * t
v = v + Enn (EL2, EL0, t, n) * t2
v = v + Enn (EL3, EL0, t, n) * t3
v = v + Enn (EL4, EL0, t, n) * t4
v = v + Enn (EL5, EL0, t, n) * t5
v = v / 10000000000 //v= 1523672860820.505600
v = v + (-0.0728 - 2.7702 * t - 1.1019 * t2 - 0.0996 * t3) / SECOND_PER_RAD